212011201987 has 16 divisors (see below), whose sum is σ = 236530082880. Its totient is φ = 188684496000.

The previous prime is 212011201937. The next prime is 212011202041. The reversal of 212011201987 is 789102110212.

It is not a de Polignac number, because 212011201987 - 2²⁷ = 211876984259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212011201937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136839 + ... + 665392.

It is an arithmetic number, because the mean of its divisors is an integer number (14783130180).

Almost surely, 2^212011201987 is an apocalyptic number.

212011201987 is a deficient number, since it is larger than the sum of its proper divisors (24518880893).

212011201987 is a wasteful number, since it uses less digits than its factorization.

212011201987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802974.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 212011201987 in words is "two hundred twelve billion, eleven million, two hundred one thousand, nine hundred eighty-seven".